Saying that the SS mech is a rip off of Iron Monger is simply not true. Stane and Yashida had completely different motives, the mech's purposes were different, the only similarities is that they had mechs, which a lot of movies have. Also, Shingen wore a version of the classic SS armor when he fought Yukio and Wolverine, that was enough for me. Harada being different was fine.